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Lena [83]
3 years ago
5

Hi, help:/ Thank you

Mathematics
2 answers:
erma4kov [3.2K]3 years ago
3 0

Answer:

its the first on 5,3 can you give me brainliest

Step-by-step explanation:

Lilit [14]3 years ago
3 0
Answer is a. (5,3).
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On monday it took 5 builders to 3 1/2 hours to build a wall
zubka84 [21]

Answer:   £ 81.38

Step-by-step explanation:

Given: On Monday,

5 builders took 3\dfrac{1}{2} hours  ( i.e. \dfrac{7}{2} hours )  to build a wall.

On Tuesday, only 2 builders were available.

As workers are inversely proportional to the time if the job remains constant.

Inverse variation equation : x_1y_1=x_2y_2

Let x be the time taken by 2 builders, then

2\times x =5\times \dfrac{7}{2}

\Rightarrow\ x=\dfrac{35}{2}\times\dfrac{1}{2}=\dfrac{35}{4}=8.75

So, 2 builders will take 8.75 hours.

Each paid  £9.30 for each hour.

Then, each builder will be paid for the work completed on Tuesday = £9.30 x  8.75

≈ £ 81.38

Hence, each builder will be paid £ 81.38 for the work completed on Tuesday .

5 0
3 years ago
Which model represents the factors of 4x^2-9
dsp73

The model (x+a)(x-a) will represents the factors of 4x²-9 as (2x+3)(2x-3).

<h3>What are the quadratic equations in one variable completing the squares method?</h3>

The "completing the squares" method aims to construct a quadratic equation of the form where the x variable is entirely covered by a single squared term, which is the square of a linear expression in x, as the name suggests.

The quadratic equation can resemble this:

x²-a² = (x+a)(x-a)

Given equation;

⇒4x²-9

⇒(2x)²-3²

The equation can be modeled as;

(2x+3)(2x-3)

Hence the model (x+a)(x-b) will represents the factors of 4x²-9 as (2x+3)(2x-3).

To learn more about completing the squares method refer to:

brainly.com/question/16800259

#SPJ1

8 0
2 years ago
Mary purchased 4 tires by mail order. She paid ​$54.90 per tire plus​ $6.50 per tire for shipping and handling. There is no sale
Alex17521 [72]

Answer:

79.6 dollars saved

Step-by-step explanation:

Mail

4 times 54.90 equals 219.6

4 times 6.50 equals 26

4 times 8.34 equals 33.36

219.6 + 26 + 33.36 = 278.96

Local store

332 times .08 equals 26.56

332 + 26.56 = 358.56

Difference

358.56 - 278.96 = 79.6

5 0
3 years ago
On a coordinate plane, a line goes through points (2, 0) and (3, 3). This graph displays a linear function. Interpret the consta
mario62 [17]

Answer:

Rate of change = 3

Step-by-step explanation:

The rate of change is the slope.

Slope = 3

8 0
3 years ago
Read 2 more answers
Help please
Nikitich [7]

Answer:

35 bagels

Step-by-step explanation:

Duh

8 0
3 years ago
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